package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.minio.MinioConfiguration;
import com.atguigu.lease.common.minio.MinioProperties;
import com.atguigu.lease.web.admin.service.FileService;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {
    @Autowired
    private MinioProperties minioProperties;
    @Autowired
    private MinioClient minioClient;
    @Override
    public String upload(MultipartFile file) throws ServerException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException {
        //1.上传文件
        //1.2 判断有没有桶
        boolean bucketExists = minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioProperties.getBuckeName()).build());
        //1.3 没有桶就创建桶,并且设置访问权限（上传需要账号和密码，访问不需要）
        if(!bucketExists){
            minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioProperties.getBuckeName()).build());
            String config= """
                    {
                                                  "Statement" : [ {
                                                    "Action" : "s3:GetObject",
                                                    "Effect" : "Allow",
                                                    "Principal" : "*",
                                                    "Resource" : "arn:aws:s3:::%s/*"
                                                  } ],
                                                  "Version" : "2012-10-17"
                                            }
                    """.formatted(minioProperties.getBuckeName());
            minioClient.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(minioProperties.getBuckeName())
                    .config(config).build());
        }
        //1.4 上传文件 putObject -> 上传运行内存的文件 ||  uploadObject -> 上传本地已object(objectName) 有的文件
        String objectName= new SimpleDateFormat("yyyyMMdd")
                .format(new Date()) +"/"+UUID.randomUUID().toString()+"_"+file.getOriginalFilename();
        minioClient.putObject(PutObjectArgs.builder()
                        .bucket(minioProperties.getBuckeName())
                        .contentType(file.getContentType())
                        .object(objectName)
                        .stream(file.getInputStream(),
                                file.getSize(), -1)
                        .build());
        //2.拼接地址】
        return String.join("/",minioProperties.getEndPoint(),
                minioProperties.getBuckeName(),objectName);
    }
}
